fft_spectrum: fft_spectrum

In abeith/retimer: Retime and Analyse Speech Signals

fft_spectrum

Description

Calculates low frequency power spectrum of vocalic interval of speech signal. Following method of Tilsen & Johnson (2008)

Usage

fft_spectrum(signal, f, f_out = 80, padding = 512)

Arguments

signal	a speech signal
f	sampling frequency
f_out	output sampling frequency. Signal will be lowpass filtered at f_out/2
padding	length to zero pad signal to. If signal is longer than padding, this will be increased.

Value

Returns a matrix with columns 'freq' (frequency in Hz) and 'pwr' (spectral power).

References

Tilsen, S., & Johnson, K. (2008). Low-frequency Fourier analysis of speech rhythm. The Journal of the Acoustical Society of America, 124(2), EL34–EL39. doi:10.1121/1.2947626

See Also

fft_spectro

abeith/retimer documentation built on Dec. 29, 2024, 5:34 a.m.